Just so you know flaxen only appears on ee (red based). A bay could never have a flaxen mane and tail showing since a bay is a black with the bay gene restricting the black to points. I'd say that's a silver only partially silvering out the tail especially since silver dilutes the body to a more brown color. I see that in the legs in this picture.
Cool markings guys! I have a soft spot for patterns and there are some gorgeous sabino horses posted.
Unfortunately at the moment I don't have any pictures of one horse, and I don't believe that I took good enough pictures of either of the horses to show off their markings. One is my Thoroughbred mare, she had lacing that looked like latice going from her tail to her hip bones, laid out like a blanket over her butt. The other is a black and white half Arabian half Paint colt that the front half of him was white, and the back half was black, and on his hocks, and only on his hocks in a band he had roaning. His mom was a straight egyptian arab that was chestnut with a flaxen mane and tail, and she did have some roaning on her belly, and the dad was a black and white paint, that as far as I know didn't have any unusual markings of his own.